# Chippy Tools vs Kerf Construction Calculator

The clearest difference is price: Chippy Tools at Free against Kerf Construction Calculator's $9.99. Chippy Tools also leads on iOS requirement (16.0 vs 26.0). Kerf Construction Calculator's advantage is in-app purchases (none vs 10) and device support (4 vs 2). On update cadence and ads there is nothing between them.

Chippy Tools is free to download; Kerf Construction Calculator costs $9.99 up front. Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Kerf Construction Calculator asks for nothing beyond the download.

Chippy Tools ships an update every 8 days, Kerf Construction Calculator every 10 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Chippy Tools | Kerf Construction Calculator |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.5 (907 ratings)](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717/reviews)** | — |
| Number of ratings | **907** | — |
| Positive reviews | 55.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | Freemium | — |
| Size | 46 MB | 4 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Peth Pty Ltd](https://appshunter.io/developer/662891650) | [Koreniuk Oleksandr](https://appshunter.io/developer/1563057206) |

## What reviewers say

### Chippy Tools

[App page](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717)

This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.

**Highlights:** Baluster spacing calculator, Flat run attached baluster calculator, Square calculator, Concrete calculator, Stair calculator, Supports millimeters, feet, and inches

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chippy Tools Pro - Weekly | $2.99 | per 7 days |
| Chippy Tools Pro - Weekly | $3.99 | per 7 days |
| Chippy Tools Pro - Quarterly | $4.99 | per 3 months |
| Chippy Tools Pro - Monthly | $5.99 | per month |
| Chippy Tools Pro - Monthly | $5.99 | per month |
| Chippy Tools Pro - Annual | $19.99 | per year |
| Chippy Tools Pro - Annual | $19.99 | per year |
| Chippy Tools Pro - Annual | $19.99 | per year |
| One Time Purchase | $85.00 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Useful construction tools
- 🙌 Great for DIY projects

**What reviewers complain about**

- 🤔 Confusing interface
- 💰 Expensive subscription
- 🐛 Inaccurate calculations
- 🔒 Difficult to cancel subscription

**Reported bugs**

- Square check feature not working
- Measurements disappear after partial use

**Requested features**

- Add more construction-related calculators
- Improve stair and rafter tools
- Include material quantity estimations
- Add support for metric and imperial units


### Kerf Construction Calculator

[App page](https://appshunter.io/ios/app/kerf-construction-calculator/id6788179502)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chippy Tools free?

Chippy Tools is free to download, with in-app purchases available.

### Is Kerf Construction Calculator free?

Kerf Construction Calculator costs $9.99, with no in-app purchases.

### Do Chippy Tools or Kerf Construction Calculator have ads?

Neither Chippy Tools nor Kerf Construction Calculator shows ads.

### Which is updated more often, Chippy Tools or Kerf Construction Calculator?

Chippy Tools ships an update every 8 days, and Kerf Construction Calculator every 10 days. Most recently, Chippy Tools was updated on October 24, 2026 and Kerf Construction Calculator on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*